const Koa = require('koa')
const app = new Koa()
var cors = require('koa2-cors')
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const bodyparser = require('koa-bodyparser')
const logger = require('koa-logger')
// JWT
const jwt = require('jsonwebtoken')
const jwtKoa = require('koa-jwt')
// route
const index = require('./routes/index')
const users = require('./routes/users')
// 全局配置
const config = require('./configs_local')
// error handler
onerror(app)
app.use(cors())
app.use(
  jwtKoa({ secret: config.tokenKey }).unless({
    path: [/register/, /login/] //数组中的路径不需要通过jwt验证
  })
)
// middlewares
app.use(
  bodyparser({
    enableTypes: ['json', 'form', 'text']
  })
)
app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))
app.use(
  views(__dirname + '/views', {
    extension: 'pug'
  })
)

// logger
// app.use(async (ctx, next) => {
//   const start = new Date()
//   await next()
//   const ms = new Date() - start
//   // console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
// })

// routes
app.use(index.routes(), index.allowedMethods())
app.use(users.routes(), users.allowedMethods())

// error-handling
app.on('error', (err, ctx) => {
  console.error('server error', err, ctx)
})
module.exports = app
